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Finding the Fourth Proportional to 394,266.80, 590,622.60 and 236,025.20

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Solution

The fourth proportional to 394,266.80, 590,622.60 and 236,025.20 is: 353,572.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,266.80 : 590,622.60 = 236,025.20 : x
  2. Step 2: Convert to fraction form
    394,266.80/590,622.60 = 236,025.20/x
  3. Step 3: Cross multiply
    394,266.80x = 590,622.60 × 236,025.20
  4. Step 4: Simplify right side
    394,266.80x = 139,401,817,289.52
  5. Step 5: Solve for x
    x = 139,401,817,289.52/394,266.80
  6. Step 6: Final answer
    x = 353,572.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.